Resize GAPI inputs in IStreamSource

That’s my fear : that the open cv gapi source be of constant size. Interesting point from Maurice. Can someone confirm or infirm ?.
Btw, Maurice Can you share a bit of your implementation? There isn’t any example of istreamingsource implementation out there. Just wandering if you could stream out a constant size and then do the resize with cv:: Rect after pulling the image out of the istreamingsource?